
body,html 
  line-height: 1
  font-weight: 200
  font-family: 'PingFang SC','STHeitiSC-Light','Helvetica-Light',Arial, Helvetica, sans-serif
// webkit，和非webkit
@media (-webkit-min-device-pixel-ratio: 1.5),(min-device-pixel-ratio: 1.5)
  .border-1px
    &::after
      -webkit-transform: scaleY(0.7)
      // ScaleY获取或设置 y轴的缩放比例 1.5*0.7=1.05px
      transform: scaleY(0.7)
      
@media (-webkit-min-device-pixel-ratio: 2),(min-device-pixel-ratio: 2)
  .border-1px
    &::after
      -webkit-transform: scaleY(0.5)  // 2*.05=1px
      transform: scaleY(0.5)
